/**
 * Copyright 2006 gworks.com.au
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. (http://www.apache.org/licenses/LICENSE-2.0)
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed 
 * on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for 
 * the specific language governing permissions and limitations under the License.
 *
 * <dhamma-message src="Atisha (11th century Tibetan Buddhist master)">
 *  The greatest achievement is selflessness. The greatest worth is self-mastery.
 *  The greatest quality is seeking to serve others. The greatest precept is continual awareness.
 *  The greatest medicine is the emptiness of everything. The greatest action is not conforming with the worlds ways.
 *  The greatest magic is transmuting the passions. The greatest generosity is non-attachment.
 *  The greatest goodness is a peaceful mind. The greatest patience is humility.
 *  The greatest effort is not concerned with results. The greatest meditation is a mind that lets go.
 *  The greatest wisdom is seeing through appearances. 
 * </dhamma-message>
 * 
 * @author Ashin Wimalajeewa (ash)
 */
package org.javaongems.rzk.client.zul;

import com.google.gwt.user.client.DOM;
import com.google.gwt.user.client.Element;
import com.google.gwt.user.client.ui.CellPanel;
import com.google.gwt.user.client.ui.UIObject;
import com.google.gwt.user.client.ui.Widget;

public class Hbox extends CellPanel {
	private int spacing = 0;

	private Element tableRow;

	public Hbox() {
		tableRow = DOM.createTR();
		DOM.appendChild(getBody(), tableRow);

		DOM.setAttribute(getTable(), "cellSpacing", "0");
		DOM.setAttribute(getTable(), "cellPadding", "0");
	}

	public void add(Widget w) {
		insert(w, getWidgetCount());
	}

	public Widget getWidget(int index) {
		return getChildren().get(index);
	}

	public int getWidgetCount() {
		return getChildren().size();
	}

	public int getWidgetIndex(Widget child) {
		return getChildren().indexOf(child);
	}

	public void insert(Widget w, int beforeIndex) {
		// Call this early to ensure that the table doesn't end up partially
		// constructed when an exception is thrown from adopt().
		w.removeFromParent();

		Element td = DOM.createTD();
		UIObject.setStyleName(td, "hbox", true);
		DOM.setIntStyleAttribute(td, "padding-right", spacing);
		DOM.insertChild(tableRow, td, beforeIndex);

		super.insert(w, td, beforeIndex);
	}

	public boolean remove(int index) {
		return remove(getWidget(index));
	}

	public boolean remove(Widget w) {
		if (w.getParent() != this)
			return false;

		Element td = DOM.getParent(w.getElement());
		DOM.removeChild(tableRow, td);

		super.remove(w);
		return true;
	}

	public void setMold(String m) {
	}

	public String getMold() {
		return "default";
	}

	public void setZkSpacing(int s) {
		spacing = s;
	}

	public int getZkSpacing() {
		return spacing;
	}
}
